C39 They Began to Eliminate the Bandits

To solve this problem, Yang Feng specially designed a hydraulic blower, because of its poor physics, so the sketch of the hydraulic blower was a complete mess. Helpless, he could only rely on Ma Jun. Under the repeated explanation of Yang Feng, Ma Jun spent half a month to invent a hydraulic blower, which solved the big problem in smelting iron and increased the success rate from 50% to 80%